8-Stage Tankless Alkaline Reverse Osmosis System
A tankless reverse osmosis system that tucks neatly under your sink, with no bulky storage tank. An 8-stage RO water filter with an alkaline remineralization stage delivers clean, pH-balanced drinking water, and the faucet is included. Built for San Diego and Southern California tap water.
Choose your option
8-stage filtration with a standard faucet
Typical dealer price: $799
Ships nationwide · 500 GPD · Standard Faucet · Faucet included · Free shipping · Ships in 5 to 7 business days · Sales tax calculated at checkout · Direct distributor pricing · No middleman, no commission. Professional installation in Southern California by our local, veteran-owned team is quoted separately at your free water test.
What's included
- Tankless design with no storage tank, so it saves under-sink space
- 8-stage filtration with an alkaline remineralization stage
- Standard drinking water faucet included
- Fresh, pH-balanced RO water on demand for drinking, cooking, coffee and ice
- Filter changes about every 12 to 18 months
Reduces
Plus over 1,000 other impurities in the water from your drinking faucet.
System Specifications, 500 GPD Standard Faucet
Full technical specs for the 500 GPD Standard Faucet 8-stage tankless alkaline RO system.
| Filtration stages | 8-stage |
|---|---|
| Capacity | 500 gallons per day |
| Design | Tankless, under-sink, space-saving |
| RO membrane | 0.0001 micron |
| Remineralization | Alkaline stage for pH-balanced water |
| Faucet | Standard faucet, included |
| Dimensions | About 16.7" L x 5.7" W x 13.9" H |
| Filter life | About 12 to 18 months, depending on your water and use |
| Shipping | Free shipping nationwide · Ships in 5 to 7 business days |
| Warranty | Lifetime limited warranty, plus a 30-day guarantee |
Why Choose a Tankless RO System
Traditional reverse osmosis systems store purified water in a pressure tank that takes up most of the cabinet under your sink. A tankless system filters on demand instead, so your water is fresh from the membrane and your cabinet stays usable.
- Frees up space under the kitchen sink
- Fresh water on demand, not water sitting in a tank
- Alkaline stage adds minerals back for better taste
- Pairs with a whole-house softener for complete coverage
What to Expect After You Order
- Order confirmation. We call or text within 24 hours to confirm your option and shipping details.
- Shipping or local install quote. Your system ships in 5 to 7 business days. In Southern California, we can test your water and quote professional installation.
- Setup and support. Our local, veteran-owned team installs it under your sink, or your plumber connects it, and we stay on call after.
Reverse Osmosis Questions, Answered
What's the difference between the 500 GPD and 700 GPD systems?
Both are 8-stage tankless systems with an alkaline remineralization stage. The 700 GPD fills a glass faster and comes with a smart digital faucet. The 500 GPD comes with a standard faucet and is the right fit for most homes.
Is installation included in the price?
No. The price shown is for the complete system and faucet. In Southern California, professional installation by our local, veteran-owned team is quoted separately at your free water test, or your own plumber can connect it.
How long until I receive it?
Shipping is free. Your system ships in 5 to 7 business days and arrives ready to install under your kitchen sink.
What's the warranty?
Every system includes a lifetime limited warranty, plus our 30-day guarantee.
Why choose a tankless RO system?
A tankless design saves valuable under-sink space, with no bulky storage tank, and delivers fresh RO water on demand.
What does it reduce?
It reduces total dissolved solids (TDS), lead, fluoride, nitrates, chromium-6, bromate and chlorine taste and odor, along with over 1,000 other impurities in the water from your drinking faucet.
How often do the filters need changing?
Typically every 12 to 18 months, depending on your water and how much you use.
Do you ship outside California?
Yes. We ship free anywhere in the continental U.S., and the system arrives ready for a licensed plumber to connect. We test and install throughout San Diego County and within a 90-mile radius, including North County, the South Bay, Temecula, Murrieta, Riverside and south Orange County.
Still have questions or want an expert to check your water first?